Combine setuptools and wheel detection in one step

It would be annoying if you see an error about setuptools, install it,
and only be greeted by another error telling you to install wheel.
So we combine the two into one.

Author: sbidoul

src/pip/_internal/cli/cmdoptions.py

@@ -785,13 +785,13 @@ def _handle_no_use_pep517(
 
     # If user doesn't wish to use pep517, we check if setuptools and wheel are installed
     # and raise error if it is not.
-    for package in ("setuptools", "wheel"):
-        if not importlib.util.find_spec(package):
-            msg = (
-                f"It is not possible to use --no-use-pep517 "
-                f"without {package} installed."
-            )
-            raise_option_error(parser, option=option, msg=msg)
+    packages = ("setuptools", "wheel")
+    if not all(importlib.util.find_spec(package) for package in packages):
+        msg = (
+            f"It is not possible to use --no-use-pep517 "
+            f"without {' and '.join(packages)} installed."
+        )
+        raise_option_error(parser, option=option, msg=msg)
 
     # Otherwise, --no-use-pep517 was passed via the command-line.
     parser.values.use_pep517 = False